JPH11175168A - Pressure reducing valve with flow rate measuring function - Google Patents
Pressure reducing valve with flow rate measuring functionInfo
- Publication number
- JPH11175168A JPH11175168A JP36345097A JP36345097A JPH11175168A JP H11175168 A JPH11175168 A JP H11175168A JP 36345097 A JP36345097 A JP 36345097A JP 36345097 A JP36345097 A JP 36345097A JP H11175168 A JPH11175168 A JP H11175168A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pressure
- flow rate
- pressure reducing
- reducing valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は蒸気や圧縮空気や液
体等の配管系に取り付けて、出口側すなわち弁の二次側
の流体圧力を所定の設定圧力に保つ減圧弁に関し、特
に、その減圧弁を流下する流量を測定することのできる
機能を有するものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure reducing valve which is attached to a piping system for steam, compressed air, liquid or the like to maintain a fluid pressure at an outlet side, that is, a secondary side of the valve at a predetermined set pressure. The present invention relates to a device having a function of measuring a flow rate flowing down a valve.
【０００２】[0002]
【従来の技術】流量を測定することのできる従来の減圧
弁としては、例えば特開昭６３−４５６１４号に示され
たものがある。これは、減圧弁の主弁体の変位を検出す
る変位検出器を設け、この変位検出器で主弁体の変位す
なわち弁開度を検出し、この弁開度を基にして減圧弁を
流下する流量を測定することができるものである。2. Description of the Related Art A conventional pressure reducing valve capable of measuring a flow rate is disclosed, for example, in JP-A-63-45614. This is provided with a displacement detector for detecting the displacement of the main valve body of the pressure reducing valve, and the displacement detector detects the displacement of the main valve body, that is, the valve opening, and flows down the pressure reducing valve based on the valve opening. The flow rate to be measured can be measured.
【０００３】[0003]
【発明が解決しようとする課題】上記従来のものでは、
主弁体の開度を検出するための変位検出器を設けなけれ
ばならず、減圧弁の機構が複雑になる問題があった。SUMMARY OF THE INVENTION In the above prior art,
A displacement detector for detecting the opening of the main valve element must be provided, and there is a problem that the mechanism of the pressure reducing valve becomes complicated.
【０００４】従って、本発明の課題は簡単な構造でもっ
て流量を測定することのできる流量測定機能付き減圧弁
を得ることである。Accordingly, an object of the present invention is to provide a pressure reducing valve having a flow rate measuring function capable of measuring a flow rate with a simple structure.
【０００５】[0005]
【課題を解決するための技術的手段】上記課題を解決す
るために講じた本発明の手段は、弁の出口側すなわち二
次側の流体圧力を圧力検知手段で検知し、当該圧力検知
手段を介して弁部を開閉し、弁の入口側すなわち一次側
の高圧流体を二次側へ供給又は停止して二次側の流体圧
力を所定値に維持する減圧弁の弁部の開度と一次側及び
二次側の圧力から、当該減圧弁を流下する流量を演算す
ることのできるものにおいて、圧力検知手段と連設した
弁部を配置し、当該弁部を弾性部材で閉弁方向に付勢し
て、当該弾性部材の弾性変形を検出する歪ゲ―ジを弾性
部材に取り付けて、当該弾性変形から弁部の開度を算出
する演算部を設けて、当該演算部によって算出された弁
部の開度と一次側及び二次側圧力から減圧弁を流下する
流量を演算するものである。Means for Solving the Problems According to the means of the present invention taken to solve the above problems, a fluid pressure on the outlet side of the valve, that is, a secondary side is detected by a pressure detecting means, and the pressure detecting means is detected. The opening and closing of the valve section through the valve section, and supply or stop of the high pressure fluid on the inlet side of the valve, that is, the primary side to the secondary side, to maintain the fluid pressure on the secondary side at a predetermined value, and the degree of opening and the In a device capable of calculating the flow rate flowing down the pressure reducing valve from the pressures on the side and the secondary side, a valve portion connected to the pressure detecting means is arranged, and the valve portion is attached to the valve closing direction by an elastic member. A strain gauge for detecting the elastic deformation of the elastic member is attached to the elastic member, and a calculation unit for calculating the opening of the valve unit from the elastic deformation is provided. The valve calculated by the calculation unit is provided. The flow rate flowing down the pressure reducing valve is calculated from the opening degree of the section and the primary and secondary pressures. It is.
【０００６】[0006]
【発明の実施の形態】弁を流下する流量は従来周知のよ
うに、流下する流体の種類に基づく定数をｋとし、弁の
一次側と二次側の圧力差を△Ｐとし、弁開度をパラメ―
タとした弁固有の容量係数をＣｖとして、流量：Ｑ＝ｋ
・Ｃｖ・△Ｐ1/2 式により演算することができる。DESCRIPTION OF THE PREFERRED EMBODIMENTS As is well known in the art, the flow rate flowing down a valve is k, a constant based on the type of fluid flowing down, ΔP the pressure difference between the primary side and the secondary side of the valve, and the valve opening degree. Is a parameter
Flow rate: Q = k, where Cv is the capacity coefficient specific to the valve
· Cv · △ P1 / 2 It can be calculated by the formula.
【０００７】一次側と二次側の圧力から△Ｐを求め、ま
た、弾性部材の歪ゲ―ジで検出した変位から弁部の開度
を算出することによりＣｖを求めて、上記式を用いて減
圧弁を流下する流量：Ｑを演算することができる。[0007] ΔP is obtained from the pressure on the primary side and the secondary side, and Cv is obtained by calculating the opening degree of the valve from the displacement detected by the strain gauge of the elastic member. Thus, the flow rate Q flowing down the pressure reducing valve can be calculated.
【０００８】[0008]
【実施例】図１に本発明の流量測定機能付き減圧弁の全
体構成図を示す。減圧弁本体１に入口２と出口３を設
け、入口２を図示しない蒸気源と管路３０で接続する。
管路３０に減圧弁の一次側圧力を検出する圧力検出手段
としての圧力センサ３１を取り付ける。一方、出口３に
設けた管路４に二次側圧力を検出する圧力センサ５を取
り付ける。FIG. 1 shows an overall configuration diagram of a pressure reducing valve having a flow rate measuring function according to the present invention. An inlet 2 and an outlet 3 are provided in the pressure reducing valve body 1, and the inlet 2 is connected to a steam source (not shown) by a pipe 30.
A pressure sensor 31 as pressure detection means for detecting the primary pressure of the pressure reducing valve is attached to the conduit 30. On the other hand, a pressure sensor 5 for detecting a secondary pressure is attached to a conduit 4 provided at the outlet 3.
【０００９】弁部としての弁体７の下部に弾性部材とし
てのコイルバネ１２を配置する。コイルバネ１２は弁体
７を閉弁方向すなわち弁座８側に付勢するように配置す
ると共に、コイルバネ１２にはその変形量を検出するた
めの歪ゲ―ジ２０を取り付ける。A coil spring 12 as an elastic member is disposed below the valve body 7 as a valve. The coil spring 12 is disposed so as to urge the valve body 7 in the valve closing direction, that is, toward the valve seat 8, and the coil spring 12 is provided with a strain gauge 20 for detecting the amount of deformation.
【００１０】弁体７の上方に連設棒６を介して圧力検知
手段としてのダイヤフラム１６を配置する。ダイヤフラ
ム１６は押え板９と固定金具１０で挟み込み、その外周
は本体１に固定する。ダイヤフラム１６の上部に、圧力
設定用のコイルバネ１７とこのコイルバネ１７の圧縮量
を調節する調節ネジ１８を設ける。調節ネジ１８のハン
ドル１９を回転することにより調節ネジ１８が上下し
て、コイルバネ１７の圧縮量が変化することにより、ダ
イヤフラム１６を下側へ押し付けるバネ力が変化し、減
圧弁の二次側圧力を所定の圧力値に設定するものであ
る。A diaphragm 16 as pressure detecting means is disposed above the valve body 7 via a connecting rod 6. The diaphragm 16 is sandwiched between the holding plate 9 and the fixing bracket 10, and its outer periphery is fixed to the main body 1. A coil spring 17 for setting pressure and an adjusting screw 18 for adjusting the amount of compression of the coil spring 17 are provided above the diaphragm 16. When the handle 19 of the adjusting screw 18 is rotated, the adjusting screw 18 moves up and down, and the amount of compression of the coil spring 17 changes, so that the spring force pressing the diaphragm 16 downward changes, and the secondary pressure of the pressure reducing valve changes. Is set to a predetermined pressure value.
【００１１】ダイヤフラム１６の下部空間を連通路２１
で出口３側と連通する。出口３側の圧力すなわち減圧弁
の二次側圧力は連通路２１により圧力検知手段としての
ダイヤフラム１６の下部に伝わり、コイルバネ１７のバ
ネ力と釣り合った圧力値に自力的に維持されるものであ
る。The lower space of the diaphragm 16 is communicated with the communication passage 21.
To communicate with the exit 3 side. The pressure on the outlet 3 side, that is, the pressure on the secondary side of the pressure reducing valve, is transmitted to the lower part of the diaphragm 16 as the pressure detecting means by the communication path 21 and is automatically maintained at a pressure value balanced with the spring force of the coil spring 17. .
【００１２】減圧弁の一次側圧力は圧力センサ３１で検
出され、二次側圧力は圧力センサ５で検出され、また、
コイルバネ１２の変位量は歪ゲ−ジ２０で検出されてそ
れぞれ図示しないコントロ―ラ部へ送られる。The primary pressure of the pressure reducing valve is detected by a pressure sensor 31, the secondary pressure is detected by a pressure sensor 5, and
The displacement of the coil spring 12 is detected by a strain gauge 20 and sent to a controller (not shown).
【００１３】コントロ―ラ部には記憶部を設けて、容量
係数であるＣｖと弁体７の開度との関係、Ｃｖと△Ｐか
ら流量：Ｑを算出する式を記憶しておき、これらの記憶
部の関係から流量を演算したり表示する演算部を設け
る。A storage unit is provided in the controller unit to store therein a relation between the capacity coefficient Cv and the opening of the valve element 7, and an equation for calculating the flow rate: Q from Cv and ΔP. A calculation unit for calculating and displaying the flow rate from the relationship of the storage unit is provided.
【００１４】減圧弁は調節ネジ１８を下方に締め込むに
従って設定圧力が高くなり、二次側すなわち出口３側の
圧力をより高圧に維持することができるものである。The set pressure of the pressure reducing valve increases as the adjusting screw 18 is tightened downward, so that the pressure on the secondary side, that is, the outlet 3 side can be maintained at a higher pressure.
【００１５】[0015]
【発明の効果】弾性部材としてのコイルバネの弾性変形
量を歪ゲ―ジで検出することにより、弁開度を検出する
ことができ、ポテンショメ―タ等の弁開度検出器が不要
となり、簡単な構造でもって流量を測定することのでき
る減圧弁を得ることができる。The valve opening can be detected by detecting the amount of elastic deformation of the coil spring as an elastic member with a strain gauge, and a valve opening detector such as a potentiometer is not required. A pressure reducing valve capable of measuring the flow rate with a simple structure can be obtained.
【図１】本発明の流量測定機能付き減圧弁の実施例を示
す断面構成図。FIG. 1 is a sectional view showing an embodiment of a pressure reducing valve with a flow rate measuring function according to the present invention.
１ 本体 ２ 入口 ３ 出口 ５ 二次側圧力センサ ７ 弁体 １２ コイルバネ １６ ダイヤフラム １８ 調節ネジ ２０ 歪ゲ―ジ ３１ 一次側圧力センサ DESCRIPTION OF SYMBOLS 1 Main body 2 Inlet 3 Outlet 5 Secondary pressure sensor 7 Valve 12 Coil spring 16 Diaphragm 18 Adjustment screw 20 Strain gauge 31 Primary pressure sensor
Claims (1)
圧力検知手段で検知し、当該圧力検知手段を介して弁部
を開閉し、弁の入口側すなわち一次側の高圧流体を二次
側へ供給又は停止して二次側の流体圧力を所定値に維持
する減圧弁の弁部の開度と一次側及び二次側の圧力か
ら、当該減圧弁を流下する流量を演算することのできる
ものにおいて、圧力検知手段と連設した弁部を配置し、
当該弁部を弾性部材で閉弁方向に付勢して、当該弾性部
材の弾性変形を検出する歪ゲ―ジを弾性部材に取り付け
て、当該弾性変形から弁部の開度を算出する演算部を設
けて、当該演算部によって算出された弁部の開度と一次
側及び二次側圧力から減圧弁を流下する流量を演算する
ことを特徴とする流量測定機能付き減圧弁。1. A pressure detecting means detects a fluid pressure on an outlet side of a valve, that is, a secondary side, and opens and closes a valve portion through the pressure detecting means. Calculating the flow rate flowing down the pressure reducing valve from the opening degree of the valve section of the pressure reducing valve and the primary side pressure and the secondary side pressure which supply or stop to the side and maintain the secondary side fluid pressure at a predetermined value. Where possible, a valve section connected to the pressure detection means is arranged,
A computing unit that urges the valve unit in the valve closing direction with an elastic member, attaches a strain gauge for detecting elastic deformation of the elastic member to the elastic member, and calculates an opening degree of the valve unit from the elastic deformation. And calculating the flow rate flowing down the pressure reducing valve from the opening degree of the valve section and the primary and secondary pressures calculated by the calculating section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36345097A JPH11175168A (en) | 1997-12-15 | 1997-12-15 | Pressure reducing valve with flow rate measuring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36345097A JPH11175168A (en) | 1997-12-15 | 1997-12-15 | Pressure reducing valve with flow rate measuring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11175168A true JPH11175168A (en) | 1999-07-02 |
Family
ID=18479342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36345097A Pending JPH11175168A (en) | 1997-12-15 | 1997-12-15 | Pressure reducing valve with flow rate measuring function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11175168A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101194009B1 (en) | 2010-03-23 | 2012-10-24 | 포테닛 주식회사 | Three-axis directional force measuring apparaturs |
| KR101515113B1 (en) * | 2014-08-04 | 2015-04-28 | 구진화 | Regulator for Controlling Inner Pressure Based on Discharging State |
| CN106029177A (en) * | 2014-02-26 | 2016-10-12 | 佐迪埃克航空技术公司 | Gas pressure reducer with electrically-powered master system |
-
1997
- 1997-12-15 JP JP36345097A patent/JPH11175168A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101194009B1 (en) | 2010-03-23 | 2012-10-24 | 포테닛 주식회사 | Three-axis directional force measuring apparaturs |
| CN106029177A (en) * | 2014-02-26 | 2016-10-12 | 佐迪埃克航空技术公司 | Gas pressure reducer with electrically-powered master system |
| KR101515113B1 (en) * | 2014-08-04 | 2015-04-28 | 구진화 | Regulator for Controlling Inner Pressure Based on Discharging State |
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